This wonderfully detailed image shows Robert Freitas-designed so-called "respirocytes" and red blood cells flowing through a blood vessel: a small artery. In the foreground at left, we see a closeup of the respirocyte surface including the sensor apertures and the individual rotating disks -containing active binding sites- comprising each of the thousands of sorting rotors. At lower right, we see another nearby respirocyte with its pumping station geometry and polar barcodes clearly visible.

DNA is deoxyribonucleic acid, a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information. DNA is the king of molecules.